Given identical twin males, Michael and Douglas, Douglas and his wife have four children, all of whom are girls. Michael and his wife have only one child, a boy, and are expecting another. What are ...

So with the working definition of Eugenics: "the aim to improve the human gene pool". What are key features that distinguish Eugenics from evolution by natural selection? I mean, besides that natural ...

I know that epiphyseal growth plates seal up once people become young adults and that it is currently impossible to restore them to actively produce new bone growth but, is it theoretically possible ...

Technology has evolved so much as to clone animals. But, what about human cloning?
Is it really possible to create humans in lab? Or is it that technology has not advanced to that level..?
Why cant ...

It seems like when we observe animals in the wild, the occurrence of noticeable disease in adult individuals is much lower than in humans. Why?
There are a number of reasons that this could happen, ...

Very simple: Why (and how) is regenerated skin different from original ?
As we know we lose skin cells that becomes the dust in out homes and it always grows back to full thickness right ? So when I ...

I would like to do some gene inheritance simulations, and I was wondering if there is an accepted model for what mating looks like in the general human population? I am not necessarily looking for the ...

The Nazi eugenics programs are well known. Despite their controversy, I cannot find any indication on their effectiveness. Were there ever and studies done on the (arguably subjective definition of) ...

I'm looking for a reference that tells me how many recombenation events occur in humans from one generation to the next.
Assuming that the human genome is a 3.3 GigaBases long DNA sequence, how many ...

I can understand the allele notation when is in the form rs8176719(T;T) or rs8176719(G) but recently i found this ones rs8176719(T;-) or rs8176719(-;T).
So im confused, rs8176719(T;-) is the same as ...

It looks like a simple problem, affecting almost half of the population at the post-pubertal age and of any gender and ethnicity [wikipedia]. What is so complex about finding a cure? Also, if you know ...

Please forgive me in case my question wouldn't make much sense. I was reading about ABO blood groups on Wikipedia, where I learnt that O is a recessive allele, and that it seems the A allele predates ...

Many people on this site ask questions that directly or indirectly have to do with heritability in human.
Do you know a list of estimates of heritability of various traits in humans? Or could you try ...

At 10.000 BC (12 ka), we became the last of the Homo species on Earth. In evolutionary terms this is a very little time range to something happen, but I'm wondering anyway, in this meantime which are ...

My question is dealing with how many ancestors it took to produce me:
--> to produce me it took 2 people (my parents) = ($2^1$) people = 2
--> one generation further included = ($2^1 + 2^2$) people ...

After my online research on the subject, I learnt that, biologically speaking, many scientists believe that there is no such thing as a race. Homo sapiens as a species is only 200,000 years old, which ...

People often say, including those with extensive knowledge in biology, that a certain species of animal will evolve in one way or another:
1.From changing environments.
2.Mutations.
3.Possibly even ...

I have read about Rhesus D Hemolytic Disease of the Newborn, sometimes called "Rh disease". It's rare, but it can happen when an Rh+ baby is conceived by an Rh- mother. This raises many questions. I ...

OK, I have rheumatoid arthritis and I've been injecting Humira 2 times a month for the last 8 months.
As far as I know rheumatoid arthritis is simply an immune system disorder which makes the immune ...

Tired of hearing of these urban legends and popular opinions, I ask this question here to see if there really is scientific merit to this belief. My questions is, is it really "harmful" for a person ...

So, for a project I've been working on (different story), I've been looking at the HapMap Project, and their free online files. In their README file, they talk about how for each legend file for each ...